attic fan/garage fan

[travelguy]

am ready to consider having an attic fan to lower the attic temperature, and also to having a garage fan installed to make the garage cooler in the warmer weather. could i please have some information from anyone who has had this done; has it made an improvement in lowering the temperature or lowering utility bills? solar vs electric? reliable and fair contractor?
thanks to all who can help with information.
:shrug:

[l2ridehd]

I have done several things to moderate the garage temperature. Goal is to have the garage warmer in winter and cooler in summer. I started this by trying to track how much each change impacted the temperature, but there are so many variables I gave up. The first step was to insulate the garage doors. This is complete and did improve the summer heat issue. My garage has a very steep roof and I am actually finishing a 18 X 10 room over the garage. This is a work in progress. I installed two ceiling fans in the garage and I am not sure it has lowered the temperature, but it sure feels better with the air movement. I am insulating all sides of the room and have installed a ceiling fan up there as well. Also have done the whole house radiant barrier and this made a significant difference in the house cooling. This is also over the garage. Once the room is finished I will also complete R-19 insulation over the remainder of the garage. Each step has made an improvement, I just can't rank them as to which is best, and next best etc.

[JoMar]

We are also having a radiant barrier installed.....and probably the garage doors insulated. First steps to see how it goes....maybe more after we see how the first step goes.

[rjm1cc]

Measure the temperatures outside, in the garage and the attic. Mine varied by less than 10 degrees. In the evening the attic and garage did not cool off as fast as the outside so and electric (not solar) may cut a few degrees off. Don't think I would save from a fan in the roof. If you want to work in the garage a room fan would help.